Answer: C. 51
A study involving 51 cultures was conducted to identify personality traits and their relevance to Psychiatry. In this study, cross-cultural research on personality traits was compared at both individual and culture levels using the FFM (Five=Factor Model).
The average personality profiles from 51 cultures show meaningful variability. Despite differences in language, history, religion, political systems, and other cultural features, it was concluded that aggregate personality scores are related to epidemiological data on psychiatric disorders.